<form action="#!">
<div class="row">
<div class="col m6 s12">
<div class="input-field">
<i class="fa fa-user prefix"></i>
<input id="input_name" type="text" name="name">
<label for="input_name">Name</label>
</div>
</div>
<div class="col m6 s12">
<div class="input-field">
<i class="fa fa-envelope prefix"></i>
<input id="input_email" type="email" name="email">
<label for="input_email">Email</label>
</div>
</div>
</div>
<div class="input-field">
<i class="fa fa-tag prefix"></i>
<input id="input_username" type="text" name="subject">
<label for="input_username">Subject</label>
</div>
<div class="input-field">
<i class="fa fa-comment prefix"></i>
<textarea id="textarea-message" class="materialize-textarea" name="message"></textarea>
<label for="textarea-message">Message</label>
</div>
<p>
<input type="checkbox" id="checkbox_copy" name="send_copy" />
<label for="checkbox_copy">Send a copy to my e-mail address</label>
</p>
<button class="waves-effect btn">Send Message</button>
</form>